Synthesis and Rearrangement of <i>P</i>
-Nitroxyl-Substituted P<sup>III</sup>
and P<sup>V</sup>
Phosphanes: A Combined Experimental and Theoretical Case Study
and TEMPO. Phosphane sulfide 7 revealed a rearrangement to phosphane oxide 8 (Ph2P(O)STEMP) in CDCl3 at ambient temperature, whereas in THF, thermal decomposition of sulfide 7 yielded salt 10 ([TEMP‐H2][Ph2P(S)O]). As well as EPR and detailed NMR kinetic studies, indepth theoretical studies provided an insight into the reaction pathways and spin‐density distributions of the reactive intermediates.
Cu(II)-Catalyzed Phosphonocarboxylative Cyclization Reaction of Propargylic Amines and Phosphine Oxide with CO<sub>2</sub>
作者:Wen-Bin Huang、Fang-Yu Ren、Ming-Wei Wang、Li-Qi Qiu、Kai-Hong Chen、Liang-Nian He
DOI:10.1021/acs.joc.0c02172
日期:2020.11.6
protocol for straightforward access to a series of 5-((diarylphosphoryl)methyl)oxazolidin-2-ones via the copper-catalyzed difunctionalization of the C≡C bond of propargylic amines with CO2 and phosphine oxide. Notably, copper catalysis is a sustainable and benign catalytic mode. This reaction proceeds under mild reaction conditions, which is operationally simple and scalable with a broad scope, exclusive
Enantioselective Desymmetrization of Diphenylphosphinamides via (−)-Sparteine-Mediated <i>Ortho</i>-Lithiation. Synthesis of <i>P</i>-Chiral Ligands
作者:Cristinel Popovici、Pascual Oña-Burgos、Ignacio Fernández、Laura Roces、Santiago García-Granda、María José Iglesias、Fernando López Ortiz
DOI:10.1021/ol902545q
日期:2010.2.5
N-dialkyl-P,P-diphenylphosphinamides using [n-BuLi·(−)-sparteine] is described as an efficient method for the synthesis of P-chiral ortho-functionalized derivatives in high yields and ee’s from 45 to >99%. The method allows access to new enantiomerically pure P-chiralphosphine and diimine ligands.
描述使用[ n -BuLi·(-)-sparteine]对N-二烷基-P,P-二苯基次膦酰胺进行不对称邻位锂化是一种高效合成P-手性邻位官能化衍生物的有效方法,ee产自45到> 99%。该方法允许获得新的对映体纯的P-手性膦和二亚胺配体。